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<div id="overview"><a href="../../../../../../../api/org/jboss/netty/handler/ssl/util/FingerprintTrustManagerFactory.html">View Javadoc</a></div><pre>

<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> * Copyright 2014 The Netty Project</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> * The Netty Project licenses this file to you under the Apache License,</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> * version 2.0 (the "License"); you may not use this file except in compliance</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> * with the License. You may obtain a copy of the License at:</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> *   <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT</em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> * License for the specific language governing permissions and limitations</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> * under the License.</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  
<a class="jxr_linenumber" name="17" href="#17">17</a>  <strong class="jxr_keyword">package</strong> org.jboss.netty.handler.ssl.util;
<a class="jxr_linenumber" name="18" href="#18">18</a>  
<a class="jxr_linenumber" name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.buffer.ChannelBuffers;
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> org.jboss.netty.util.internal.EmptyArrays;
<a class="jxr_linenumber" name="21" href="#21">21</a>  
<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> javax.net.ssl.ManagerFactoryParameters;
<a class="jxr_linenumber" name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> javax.net.ssl.TrustManager;
<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> javax.net.ssl.TrustManagerFactory;
<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> javax.net.ssl.X509TrustManager;
<a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> java.security.KeyStore;
<a class="jxr_linenumber" name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> java.security.MessageDigest;
<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> java.security.NoSuchAlgorithmException;
<a class="jxr_linenumber" name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> java.security.cert.CertificateEncodingException;
<a class="jxr_linenumber" name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> java.security.cert.CertificateException;
<a class="jxr_linenumber" name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> java.security.cert.X509Certificate;
<a class="jxr_linenumber" name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> java.util.ArrayList;
<a class="jxr_linenumber" name="33" href="#33">33</a>  <strong class="jxr_keyword">import</strong> java.util.Arrays;
<a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> java.util.List;
<a class="jxr_linenumber" name="35" href="#35">35</a>  <strong class="jxr_keyword">import</strong> java.util.regex.Pattern;
<a class="jxr_linenumber" name="36" href="#36">36</a>  
<a class="jxr_linenumber" name="37" href="#37">37</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="38" href="#38">38</a>  <em class="jxr_javadoccomment"> * An {@link TrustManagerFactory} that trusts an X.509 certificate whose SHA1 checksum matches.</em>
<a class="jxr_linenumber" name="39" href="#39">39</a>  <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a class="jxr_linenumber" name="40" href="#40">40</a>  <em class="jxr_javadoccomment"> * &lt;strong&gt;NOTE:&lt;/strong&gt;</em>
<a class="jxr_linenumber" name="41" href="#41">41</a>  <em class="jxr_javadoccomment"> * Never use this {@link TrustManagerFactory} in production unless you are not sure what you are exactly doing with it.</em>
<a class="jxr_linenumber" name="42" href="#42">42</a>  <em class="jxr_javadoccomment"> * &lt;/p&gt;&lt;p&gt;</em>
<a class="jxr_linenumber" name="43" href="#43">43</a>  <em class="jxr_javadoccomment"> * The SHA1 checksum of an X.509 certificate is calculated from its DER encoded format.  You can get the fingerprint of</em>
<a class="jxr_linenumber" name="44" href="#44">44</a>  <em class="jxr_javadoccomment"> * an X.509 certificate using the {@code openssl} command.  For example:</em>
<a class="jxr_linenumber" name="45" href="#45">45</a>  <em class="jxr_javadoccomment"> * &lt;pre&gt;</em>
<a class="jxr_linenumber" name="46" href="#46">46</a>  <em class="jxr_javadoccomment"> * $ openssl x509 -fingerprint -sha1 -in my_certificate.crt</em>
<a class="jxr_linenumber" name="47" href="#47">47</a>  <em class="jxr_javadoccomment"> * SHA1 Fingerprint=4E:85:10:55:BC:7B:12:08:D1:EA:0A:12:C9:72:EE:F3:AA:B2:C7:CB</em>
<a class="jxr_linenumber" name="48" href="#48">48</a>  <em class="jxr_javadoccomment"> * -----BEGIN CERTIFICATE-----</em>
<a class="jxr_linenumber" name="49" href="#49">49</a>  <em class="jxr_javadoccomment"> * MIIBqjCCAROgAwIBAgIJALiT3Nvp0kvmMA0GCSqGSIb3DQEBBQUAMBYxFDASBgNV</em>
<a class="jxr_linenumber" name="50" href="#50">50</a>  <em class="jxr_javadoccomment"> * BAMTC2V4YW1wbGUuY29tMCAXDTcwMDEwMTAwMDAwMFoYDzk5OTkxMjMxMjM1OTU5</em>
<a class="jxr_linenumber" name="51" href="#51">51</a>  <em class="jxr_javadoccomment"> * WjAWMRQwEgYDVQQDEwtleGFtcGxlLmNvbTCBnzANBgkqhkiG9w0BAQEFAAOBjQAw</em>
<a class="jxr_linenumber" name="52" href="#52">52</a>  <em class="jxr_javadoccomment"> * gYkCgYEAnadvODG0QCiHhaFZlLHtr5gLIkDQS8ErZ//KfqeCHTC/KJsl3xYFk0zG</em>
<a class="jxr_linenumber" name="53" href="#53">53</a>  <em class="jxr_javadoccomment"> * aCv2FcmkOlokm77qV8qOW2DZdND7WuYzX6nLVuLb+GYxZ7b45iMAbAajvGh8jc9U</em>
<a class="jxr_linenumber" name="54" href="#54">54</a>  <em class="jxr_javadoccomment"> * o07fUIahGqTDAIAGCWsoLUOQ9nMzO/8GRHcXJAeQ2MGY2VpCcv0CAwEAATANBgkq</em>
<a class="jxr_linenumber" name="55" href="#55">55</a>  <em class="jxr_javadoccomment"> * hkiG9w0BAQUFAAOBgQBpRCnmjmNM0D7yrpkUJpBTNiqinhKLbeOvPWm+YmdInUUs</em>
<a class="jxr_linenumber" name="56" href="#56">56</a>  <em class="jxr_javadoccomment"> * LoMu0mZ1IANemLwqbwJJ76fknngeB+YuVAj46SurvVCV6ekwHcbgpW1u063IRwKk</em>
<a class="jxr_linenumber" name="57" href="#57">57</a>  <em class="jxr_javadoccomment"> * tQhOBO0HQxldUS4+4MYv/kuvnKkbjfgh5qfWw89Kx4kD+cycpP4yPtgDGk8ZMA==</em>
<a class="jxr_linenumber" name="58" href="#58">58</a>  <em class="jxr_javadoccomment"> * -----END CERTIFICATE-----</em>
<a class="jxr_linenumber" name="59" href="#59">59</a>  <em class="jxr_javadoccomment"> * &lt;/pre&gt;</em>
<a class="jxr_linenumber" name="60" href="#60">60</a>  <em class="jxr_javadoccomment"> * &lt;/p&gt;</em>
<a class="jxr_linenumber" name="61" href="#61">61</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="62" href="#62">62</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../org/jboss/netty/handler/ssl/util/FingerprintTrustManagerFactory.html">FingerprintTrustManagerFactory</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../../../org/jboss/netty/handler/ssl/util/SimpleTrustManagerFactory.html">SimpleTrustManagerFactory</a> {
<a class="jxr_linenumber" name="63" href="#63">63</a>  
<a class="jxr_linenumber" name="64" href="#64">64</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Pattern FINGERPRINT_PATTERN = Pattern.compile(<span class="jxr_string">"^[0-9a-fA-F:]+$"</span>);
<a class="jxr_linenumber" name="65" href="#65">65</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Pattern FINGERPRINT_STRIP_PATTERN = Pattern.compile(<span class="jxr_string">":"</span>);
<a class="jxr_linenumber" name="66" href="#66">66</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> SHA1_BYTE_LEN = 20;
<a class="jxr_linenumber" name="67" href="#67">67</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> SHA1_HEX_LEN = SHA1_BYTE_LEN * 2;
<a class="jxr_linenumber" name="68" href="#68">68</a>  
<a class="jxr_linenumber" name="69" href="#69">69</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> ThreadLocal&lt;MessageDigest&gt; tlmd = <strong class="jxr_keyword">new</strong> ThreadLocal&lt;MessageDigest&gt;() {
<a class="jxr_linenumber" name="70" href="#70">70</a>          @Override
<a class="jxr_linenumber" name="71" href="#71">71</a>          <strong class="jxr_keyword">protected</strong> MessageDigest initialValue() {
<a class="jxr_linenumber" name="72" href="#72">72</a>              <strong class="jxr_keyword">try</strong> {
<a class="jxr_linenumber" name="73" href="#73">73</a>                  <strong class="jxr_keyword">return</strong> MessageDigest.getInstance(<span class="jxr_string">"SHA1"</span>);
<a class="jxr_linenumber" name="74" href="#74">74</a>              } <strong class="jxr_keyword">catch</strong> (NoSuchAlgorithmException e) {
<a class="jxr_linenumber" name="75" href="#75">75</a>                  <em class="jxr_comment">// All Java implementation must have SHA1 digest algorithm.</em>
<a class="jxr_linenumber" name="76" href="#76">76</a>                  <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> Error(e);
<a class="jxr_linenumber" name="77" href="#77">77</a>              }
<a class="jxr_linenumber" name="78" href="#78">78</a>          }
<a class="jxr_linenumber" name="79" href="#79">79</a>      };
<a class="jxr_linenumber" name="80" href="#80">80</a>  
<a class="jxr_linenumber" name="81" href="#81">81</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> TrustManager tm = <strong class="jxr_keyword">new</strong> X509TrustManager() {
<a class="jxr_linenumber" name="82" href="#82">82</a>  
<a class="jxr_linenumber" name="83" href="#83">83</a>          <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> checkClientTrusted(X509Certificate[] chain, String s) <strong class="jxr_keyword">throws</strong> CertificateException {
<a class="jxr_linenumber" name="84" href="#84">84</a>              checkTrusted(<span class="jxr_string">"client"</span>, chain);
<a class="jxr_linenumber" name="85" href="#85">85</a>          }
<a class="jxr_linenumber" name="86" href="#86">86</a>  
<a class="jxr_linenumber" name="87" href="#87">87</a>          <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> checkServerTrusted(X509Certificate[] chain, String s) <strong class="jxr_keyword">throws</strong> CertificateException {
<a class="jxr_linenumber" name="88" href="#88">88</a>              checkTrusted(<span class="jxr_string">"server"</span>, chain);
<a class="jxr_linenumber" name="89" href="#89">89</a>          }
<a class="jxr_linenumber" name="90" href="#90">90</a>  
<a class="jxr_linenumber" name="91" href="#91">91</a>          <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> checkTrusted(String type, X509Certificate[] chain) <strong class="jxr_keyword">throws</strong> CertificateException {
<a class="jxr_linenumber" name="92" href="#92">92</a>              X509Certificate cert = chain[0];
<a class="jxr_linenumber" name="93" href="#93">93</a>              byte[] fingerprint = fingerprint(cert);
<a class="jxr_linenumber" name="94" href="#94">94</a>              <strong class="jxr_keyword">boolean</strong> found = false;
<a class="jxr_linenumber" name="95" href="#95">95</a>              <strong class="jxr_keyword">for</strong> (byte[] allowedFingerprint: fingerprints) {
<a class="jxr_linenumber" name="96" href="#96">96</a>                  <strong class="jxr_keyword">if</strong> (Arrays.equals(fingerprint, allowedFingerprint)) {
<a class="jxr_linenumber" name="97" href="#97">97</a>                      found = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="98" href="#98">98</a>                      <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="99" href="#99">99</a>                  }
<a class="jxr_linenumber" name="100" href="#100">100</a>             }
<a class="jxr_linenumber" name="101" href="#101">101</a> 
<a class="jxr_linenumber" name="102" href="#102">102</a>             <strong class="jxr_keyword">if</strong> (!found) {
<a class="jxr_linenumber" name="103" href="#103">103</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> CertificateException(
<a class="jxr_linenumber" name="104" href="#104">104</a>                         type + <span class="jxr_string">" certificate with unknown fingerprint: "</span> + cert.getSubjectDN());
<a class="jxr_linenumber" name="105" href="#105">105</a>             }
<a class="jxr_linenumber" name="106" href="#106">106</a>         }
<a class="jxr_linenumber" name="107" href="#107">107</a> 
<a class="jxr_linenumber" name="108" href="#108">108</a>         <strong class="jxr_keyword">private</strong> byte[] fingerprint(X509Certificate cert) <strong class="jxr_keyword">throws</strong> CertificateEncodingException {
<a class="jxr_linenumber" name="109" href="#109">109</a>             MessageDigest md = tlmd.get();
<a class="jxr_linenumber" name="110" href="#110">110</a>             md.reset();
<a class="jxr_linenumber" name="111" href="#111">111</a>             <strong class="jxr_keyword">return</strong> md.digest(cert.getEncoded());
<a class="jxr_linenumber" name="112" href="#112">112</a>         }
<a class="jxr_linenumber" name="113" href="#113">113</a> 
<a class="jxr_linenumber" name="114" href="#114">114</a>         <strong class="jxr_keyword">public</strong> X509Certificate[] getAcceptedIssuers() {
<a class="jxr_linenumber" name="115" href="#115">115</a>             <strong class="jxr_keyword">return</strong> EmptyArrays.EMPTY_X509_CERTIFICATES;
<a class="jxr_linenumber" name="116" href="#116">116</a>         }
<a class="jxr_linenumber" name="117" href="#117">117</a>     };
<a class="jxr_linenumber" name="118" href="#118">118</a> 
<a class="jxr_linenumber" name="119" href="#119">119</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> byte[][] fingerprints;
<a class="jxr_linenumber" name="120" href="#120">120</a> 
<a class="jxr_linenumber" name="121" href="#121">121</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="122" href="#122">122</a> <em class="jxr_javadoccomment">     * Creates a new instance.</em>
<a class="jxr_linenumber" name="123" href="#123">123</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="124" href="#124">124</a> <em class="jxr_javadoccomment">     * @param fingerprints a list of SHA1 fingerprints in heaxdecimal form</em>
<a class="jxr_linenumber" name="125" href="#125">125</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="126" href="#126">126</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/jboss/netty/handler/ssl/util/FingerprintTrustManagerFactory.html">FingerprintTrustManagerFactory</a>(Iterable&lt;String&gt; fingerprints) {
<a class="jxr_linenumber" name="127" href="#127">127</a>         <strong class="jxr_keyword">this</strong>(toFingerprintArray(fingerprints));
<a class="jxr_linenumber" name="128" href="#128">128</a>     }
<a class="jxr_linenumber" name="129" href="#129">129</a> 
<a class="jxr_linenumber" name="130" href="#130">130</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="131" href="#131">131</a> <em class="jxr_javadoccomment">     * Creates a new instance.</em>
<a class="jxr_linenumber" name="132" href="#132">132</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="133" href="#133">133</a> <em class="jxr_javadoccomment">     * @param fingerprints a list of SHA1 fingerprints in heaxdecimal form</em>
<a class="jxr_linenumber" name="134" href="#134">134</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="135" href="#135">135</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/jboss/netty/handler/ssl/util/FingerprintTrustManagerFactory.html">FingerprintTrustManagerFactory</a>(String... fingerprints) {
<a class="jxr_linenumber" name="136" href="#136">136</a>         <strong class="jxr_keyword">this</strong>(toFingerprintArray(Arrays.asList(fingerprints)));
<a class="jxr_linenumber" name="137" href="#137">137</a>     }
<a class="jxr_linenumber" name="138" href="#138">138</a> 
<a class="jxr_linenumber" name="139" href="#139">139</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="140" href="#140">140</a> <em class="jxr_javadoccomment">     * Creates a new instance.</em>
<a class="jxr_linenumber" name="141" href="#141">141</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="142" href="#142">142</a> <em class="jxr_javadoccomment">     * @param fingerprints a list of SHA1 fingerprints</em>
<a class="jxr_linenumber" name="143" href="#143">143</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="144" href="#144">144</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../../../org/jboss/netty/handler/ssl/util/FingerprintTrustManagerFactory.html">FingerprintTrustManagerFactory</a>(byte[]... fingerprints) {
<a class="jxr_linenumber" name="145" href="#145">145</a>         <strong class="jxr_keyword">if</strong> (fingerprints == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="146" href="#146">146</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"fingerprints"</span>);
<a class="jxr_linenumber" name="147" href="#147">147</a>         }
<a class="jxr_linenumber" name="148" href="#148">148</a> 
<a class="jxr_linenumber" name="149" href="#149">149</a>         List&lt;byte[]&gt; list = <strong class="jxr_keyword">new</strong> ArrayList&lt;byte[]&gt;();
<a class="jxr_linenumber" name="150" href="#150">150</a>         <strong class="jxr_keyword">for</strong> (byte[] f: fingerprints) {
<a class="jxr_linenumber" name="151" href="#151">151</a>             <strong class="jxr_keyword">if</strong> (f == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="152" href="#152">152</a>                 <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="153" href="#153">153</a>             }
<a class="jxr_linenumber" name="154" href="#154">154</a>             <strong class="jxr_keyword">if</strong> (f.length != SHA1_BYTE_LEN) {
<a class="jxr_linenumber" name="155" href="#155">155</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"malformed fingerprint: "</span> +
<a class="jxr_linenumber" name="156" href="#156">156</a>                         ChannelBuffers.hexDump(ChannelBuffers.wrappedBuffer(f)) + <span class="jxr_string">" (expected: SHA1)"</span>);
<a class="jxr_linenumber" name="157" href="#157">157</a>             }
<a class="jxr_linenumber" name="158" href="#158">158</a>             list.add(f.clone());
<a class="jxr_linenumber" name="159" href="#159">159</a>         }
<a class="jxr_linenumber" name="160" href="#160">160</a> 
<a class="jxr_linenumber" name="161" href="#161">161</a>         <strong class="jxr_keyword">this</strong>.fingerprints = list.toArray(<strong class="jxr_keyword">new</strong> byte[list.size()][]);
<a class="jxr_linenumber" name="162" href="#162">162</a>     }
<a class="jxr_linenumber" name="163" href="#163">163</a> 
<a class="jxr_linenumber" name="164" href="#164">164</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> byte[][] toFingerprintArray(Iterable&lt;String&gt; fingerprints) {
<a class="jxr_linenumber" name="165" href="#165">165</a>         <strong class="jxr_keyword">if</strong> (fingerprints == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="166" href="#166">166</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"fingerprints"</span>);
<a class="jxr_linenumber" name="167" href="#167">167</a>         }
<a class="jxr_linenumber" name="168" href="#168">168</a> 
<a class="jxr_linenumber" name="169" href="#169">169</a>         List&lt;byte[]&gt; list = <strong class="jxr_keyword">new</strong> ArrayList&lt;byte[]&gt;();
<a class="jxr_linenumber" name="170" href="#170">170</a>         <strong class="jxr_keyword">for</strong> (String f: fingerprints) {
<a class="jxr_linenumber" name="171" href="#171">171</a>             <strong class="jxr_keyword">if</strong> (f == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="172" href="#172">172</a>                 <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="173" href="#173">173</a>             }
<a class="jxr_linenumber" name="174" href="#174">174</a> 
<a class="jxr_linenumber" name="175" href="#175">175</a>             <strong class="jxr_keyword">if</strong> (!FINGERPRINT_PATTERN.matcher(f).matches()) {
<a class="jxr_linenumber" name="176" href="#176">176</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"malformed fingerprint: "</span> + f);
<a class="jxr_linenumber" name="177" href="#177">177</a>             }
<a class="jxr_linenumber" name="178" href="#178">178</a>             f = FINGERPRINT_STRIP_PATTERN.matcher(f).replaceAll(<span class="jxr_string">""</span>);
<a class="jxr_linenumber" name="179" href="#179">179</a>             <strong class="jxr_keyword">if</strong> (f.length() != SHA1_HEX_LEN) {
<a class="jxr_linenumber" name="180" href="#180">180</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"malformed fingerprint: "</span> + f + <span class="jxr_string">" (expected: SHA1)"</span>);
<a class="jxr_linenumber" name="181" href="#181">181</a>             }
<a class="jxr_linenumber" name="182" href="#182">182</a> 
<a class="jxr_linenumber" name="183" href="#183">183</a>             byte[] farr = <strong class="jxr_keyword">new</strong> byte[SHA1_BYTE_LEN];
<a class="jxr_linenumber" name="184" href="#184">184</a>             <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; farr.length; i ++) {
<a class="jxr_linenumber" name="185" href="#185">185</a>                 <strong class="jxr_keyword">int</strong> strIdx = i &lt;&lt; 1;
<a class="jxr_linenumber" name="186" href="#186">186</a>                 farr[i] = (byte) Integer.parseInt(f.substring(strIdx, strIdx + 2), 16);
<a class="jxr_linenumber" name="187" href="#187">187</a>             }
<a class="jxr_linenumber" name="188" href="#188">188</a>         }
<a class="jxr_linenumber" name="189" href="#189">189</a> 
<a class="jxr_linenumber" name="190" href="#190">190</a>         <strong class="jxr_keyword">return</strong> list.toArray(<strong class="jxr_keyword">new</strong> byte[list.size()][]);
<a class="jxr_linenumber" name="191" href="#191">191</a>     }
<a class="jxr_linenumber" name="192" href="#192">192</a> 
<a class="jxr_linenumber" name="193" href="#193">193</a>     @Override
<a class="jxr_linenumber" name="194" href="#194">194</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> engineInit(KeyStore keyStore) <strong class="jxr_keyword">throws</strong> Exception { }
<a class="jxr_linenumber" name="195" href="#195">195</a> 
<a class="jxr_linenumber" name="196" href="#196">196</a>     @Override
<a class="jxr_linenumber" name="197" href="#197">197</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> engineInit(ManagerFactoryParameters managerFactoryParameters) <strong class="jxr_keyword">throws</strong> Exception { }
<a class="jxr_linenumber" name="198" href="#198">198</a> 
<a class="jxr_linenumber" name="199" href="#199">199</a>     @Override
<a class="jxr_linenumber" name="200" href="#200">200</a>     <strong class="jxr_keyword">protected</strong> TrustManager[] engineGetTrustManagers() {
<a class="jxr_linenumber" name="201" href="#201">201</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> TrustManager[] { tm };
<a class="jxr_linenumber" name="202" href="#202">202</a>     }
<a class="jxr_linenumber" name="203" href="#203">203</a> }
</pre>
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